Synergistic effects of Bacillus subtilis and PET fiber additions on the mechanical properties of Alkali-Activated composite mortars

被引：0
|
作者：
Filazi, Ahmet [1 ]
机构：
[1] Kirikkale Univ, Kirikkale Vocat Sch, Dept Construct Technol, TR-71450 Kirikkale, Turkiye
来源：
MATERIALS LETTERS | 2024年 / 376卷
关键词：
Biomaterials; Composite materials; Bacteria; PET fibers; Alkali-activated; Mechanical properties; COMPRESSIVE STRENGTH; CONCRETE;
D O I：
10.1016/j.matlet.2024.137221
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study investigates the impact of Bacillus subtilis and PET fiber additions on the mechanical properties of alkali-activated composite mortars (AACMs). Blast furnace slag (BFS) is used as the primary binder, activated by sodium hydroxide (NaOH) and sodium silicate (Na2SiO3). Controlled curing conditions at 20( degrees )C and 100 % relative humidity for 28 days were maintained. Comprehensive tests, including compressive strength, flexural strength, and scanning electron microscopy (SEM) analyses, were conducted. Results showed that AACMs incorporating Bacillus subtilis exhibited a 25 % increase in compressive strength and a 20 % increase in flexural strength compared to control samples. The addition of PET fibers further improved these properties by 10 % and 8 %, respectively. These findings highlight the potential of bio-enhanced alkali-activated materials in sustainable construction.
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页数：5
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